<?php

/* * *************************************************************************
 * 			NA7KR Log Program 
 * ************************************************************************* */

/* * *************************************************************************
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 * ************************************************************************* */

function createThumbs($pathToImages, $pathToThumbs, $thumbWidth) {
    // open the directory
    $dir = opendir($pathToImages);

    // loop through it, looking for any/all JPG files:
    while (false !== ($fname = readdir($dir))) {
        // parse path for the extension
        $info = pathinfo($pathToImages . $fname);
        // continue only if this is a JPEG image
        if (strtolower($info['extension']) == 'jpg') {
            echo "Creating thumbnail for {$fname} <br />";

            // load image and get image size
            $img = imagecreatefromjpeg("{$pathToImages}{$fname}");
            $width = imagesx($img);
            $height = imagesy($img);

            // calculate thumbnail size
            $new_width = $thumbWidth;
            $new_height = floor($height * ( $thumbWidth / $width ));

            // create a new temporary image
            $tmp_img = imagecreatetruecolor($new_width, $new_height);

            // copy and resize old image into new image 
            imagecopyresized($tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height);

            // save thumbnail into a file
            imagejpeg($tmp_img, "{$pathToThumbs}{$fname}");
        }
    }
    // close the directory
    closedir($dir);
}

// call createThumb function and pass to it as parameters the path 
// to the directory that contains images, the path to the directory
// in which thumbnails will be placed and the thumbnail's width. 
// We are assuming that the path will be a relative path working 
// both in the filesystem, and through the web for links
createThumbs("/srv/Awards/", "/srv/Awards/thumbs/", 100);
?>